%% @author author <author@example.com>
%% @copyright YYYY author.

%% @doc Supervisor for the agent application.

-module(agent_sup).
-author('author <author@example.com>').

-behaviour(supervisor).

%% External exports
-export([start_link/0, upgrade/0]).

%% supervisor callbacks
-export([init/1]).

%% @spec start_link() -> ServerRet
%% @doc API for starting the supervisor.
start_link() ->
    supervisor:start_link({local, ?MODULE}, ?MODULE, []).

%% @spec upgrade() -> ok
%% @doc Add processes if necessary.
upgrade() ->
    {ok, {_, Specs}} = init([]),

    Old = sets:from_list(
            [Name || {Name, _, _, _} <- supervisor:which_children(?MODULE)]),
    New = sets:from_list([Name || {Name, _, _, _, _, _} <- Specs]),
    Kill = sets:subtract(Old, New),

    sets:fold(fun (Id, ok) ->
                      supervisor:terminate_child(?MODULE, Id),
                      supervisor:delete_child(?MODULE, Id),
                      ok
              end, ok, Kill),

    [supervisor:start_child(?MODULE, Spec) || Spec <- Specs],
    ok.

%% @spec init([]) -> SupervisorTree
%% @doc supervisor callback.
init([]) ->
%%    Ip = case os:getenv("MOCHIWEB_IP") of false -> "0.0.0.0"; Any -> Any end,   
    DeployPluginSpec = {agent_deploy_plugin ,
              { agent_deploy_plugin  , start_link, []},
               permanent, 5000, worker, [agent_httpd_proxy]},
    ReportSpec = {agent_report,
           {agent_report, start_link, []},
           permanent, 5000, worker, [agent_manager]},    

    DaemonSpec = {agent_daemon,
          {agent_daemon, start_link, []},
          permanent, 5000, worker, [agent_daemon]},  

    F5ProxySpec = {agent_f5_proxy ,
           {agent_f5_proxy, start_link, []},
           permanent, 5000, worker, [agent_f5_proxy]},       	
    HttpdRegisterSpec = {agent_httpd_register ,
           { agent_httpd_register , start, []},
           permanent, 5000, worker, [agent_httpd_register]},  
      HttpdProxySpec = {agent_httpd_proxy ,
              { agent_httpd_proxy  , start_link, []},
               permanent, 5000, worker, [agent_httpd_proxy]},

    Processes = [
        DeployPluginSpec,
	ReportSpec,
	DaemonSpec,
	F5ProxySpec,
	HttpdRegisterSpec,
	HttpdProxySpec
	],
    {ok, {{one_for_one, 10, 10}, Processes}}.
